Grabbing structure of empty container stacking device

Abstract

The invention belongs to the technical field of empty container stacking operation, and particularly discloses a grabbing structure of an empty container stacking device.The grabbing structure comprises a connecting rod, connecting bases are rotationally connected to the two sides of the connecting rod, the connecting bases are of a U-shaped structure, and a connecting cylinder is connected to the middle of the upper end of each connecting base; a rotating motor is connected to the middle of the upper end of the inner wall of the connecting cylinder, the output end of the rotating motor sequentially penetrates through the connecting cylinder and the connecting base and extends to the position below the connecting base, a connecting block is connected to the output end of the rotating motor, and fixing plates are connected to the two sides of the connecting block correspondingly; lateral clamping force is applied to the side face of the container through the clamping mechanism to achieve primary fixing, the adjusting mechanism forms double locking of attaching and inserting connection from the four corners of the container to strengthen the grabbing stability, the limiting mechanism buffers and protects the container body and calibrates the levelness of the upper layer and the lower layer, and finally the effects of accurate and stable grabbing and regular stacking of the container are achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of container empty container stacking operation, and particularly discloses a grabbing structure of a container empty container stacking device. BACKGROUND

[0002] Container stacking refers to an operation process of stacking multiple containers in a certain order and height in a neat manner at places such as ports and freight yards by using a special stacking device, and through reasonable stacking, the space can be efficiently utilized, and the storage, transfer and management of containers are facilitated, which is a key operation for improving space utilization and operation efficiency in the container logistics link.

[0003] In the current container stacking process, the existing stacking devices are mostly difficult to flexibly and accurately adjust the angle of the container, when the bottom container is tilted due to uneven ground, deformation or stacking deviation, the device cannot timely adaptively adjust the angle of the upper container, which makes it difficult for the upper container to be well aligned with the lower container in the horizontal and vertical directions, and finally results in poor stacking effect, which not only affects the overall stability of the stacking, but also increases the risk of container dumping, and reduces the efficiency and quality of the stacking operation. SUMMARY

[0004] The application aims to solve the problems in the prior art and provides a grabbing structure of a container empty container stacking device.

[0005] To achieve the above purpose, the application provides a grabbing structure of a container empty container stacking device, which comprises a connecting rod, connecting seats are rotatably connected to the two sides of the connecting rod, the connecting seat is in a U-shaped structure, a connecting cylinder is connected to the middle of the upper end of the connecting seat, a rotary motor is connected to the middle of the inner wall of the upper end of the connecting cylinder, the output end of the rotary motor extends to below the connecting seat in sequence through the connecting cylinder and the connecting seat, a connecting block is connected to the output end of the rotary motor, fixed plates are connected to the two sides of the connecting block, a clamping mechanism is connected to the lower end of the two fixed plates, adjusting mechanisms are connected to the two ends of the clamping mechanism, the number of the adjusting mechanisms is two groups, the two adjusting mechanisms are symmetrically arranged, a container body is connected below the two adjusting mechanisms, insertion holes are formed around the upper end of the container body, and a limiting mechanism is connected to the middle of one side of the clamping mechanism. The limiting mechanism comprises mounting rods, the number of the mounting rods is three, mounting blocks are connected to one end of the three mounting rods, vertical plates are connected to the middle of the lower end of the mounting blocks, supporting plates are rotatably connected to one side of the vertical plates, supporting blocks are connected to one side of the supporting plates, and buffer pads are connected to one side of the two supporting blocks.

[0006] Preferably, the clamping mechanism comprises a frame, the middle of the inner wall of the frame is connected with a partition plate, the outer wall of the partition plate is connected with the inner wall of the frame, the middle of one side of the partition plate is uniformly provided with a mounting hole, and the inner wall of the two mounting holes is embedded with a first double-shaft air cylinder.

[0007] Preferably, the two ends of the first double-shaft air cylinder are connected with a moving plate, and the two moving plates are located on the two sides of the inner part of the frame and slide.

[0008] Preferably, the adjusting mechanism comprises a shell, the number of the shell is two groups, one end of the two shells is connected with one end of the two moving plates, and the middle of the inner wall of the shell is connected with a connecting plate.

[0009] Preferably, the middle of one side of the connecting plate is connected with a mounting hole, the inner wall of the two mounting holes is embedded with a second double-shaft air cylinder, the two ends of the second double-shaft air cylinder are connected with a moving block, and the two moving blocks are located on the two sides of the inner part of the shell and slide.

[0010] Preferably, the middle of the lower end of the moving block is connected with a clamping plate, one side of the clamping plate is in contact with the upper part of the two sides of the container body, the middle of the lower end of the clamping plate is connected with a clamping block, and the clamping block is inserted into the insertion hole at the four corners of the container body.

[0011] Preferably, the side of the vertical plate is connected with a rotating seat, the upper end and the lower end of the rotating seat are rotatably connected with a rotating block, one side of the two rotating blocks is connected with the side of the supporting plate, one side of the two supporting blocks is symmetrically arranged on one side of the supporting plate, the shape of the buffer pad is a semicircular structure, the buffer pad is made of silica gel, and one side of the two buffer pads is in contact with the lower part of one side of the container body.

[0012] Preferably, the two sides of the vertical plate are connected with a buffer plate, one side of the two buffer plates is uniformly connected with a buffer spring, one end of the plurality of buffer springs is connected with one side of the supporting plate, the upper ends of the two supporting blocks are connected with an electric telescopic rod, and the lower ends of the plurality of electric telescopic rods extend to the lower ends of the two supporting blocks, respectively, wherein the lower ends of the two electric telescopic rods and the lower ends of the other two electric telescopic rods are connected with a limiting block.

[0013] Compared with the prior art, the present application has the following advantages: The device adopts the fixing design of side clamping and angle locking, the clamping mechanism drives the adjusting mechanism to move to the two sides of the upper end of the container, the adjusting mechanism synchronously drives the clamping block to be inserted into the corner insertion hole of the container, the clamping plate is located at the four corners of the container, multi-directional locking is formed, and the up-and-down movement or falling of the container during grabbing is effectively avoided.

[0014] The silicon rubber buffer pad of the limiting mechanism cooperates with the buffer spring, can buffer the instantaneous impact force during clamping and lifting, reduces the damage of rigid contact to the side surface of the container, further guarantees the structural integrity of the container during operation, and reduces the safety risk caused by unstable clamping.

[0015] The rotary motor can flexibly adjust the posture of the clamping mechanism according to the actual placement angle of the container, solves the problem of inconvenient angle adjustment of the traditional structure, in the stacking stage, the electric telescopic rod drives the limiting block to contact the side surface of the lower container, and the alignment of the side surfaces of the upper and lower containers is ensured through fine adjustment, so that the stacking deviation caused by the inclination of the container is avoided, the overall stacking regularity is improved, the grasping and stacking requirements of containers of different specifications are met, the manual intervention steps are reduced, and the smoothness and convenience of the operation process are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the device of the application; Figure 2 It is a sectional view of the device of the application; Figure 3 It is a schematic diagram of the installation structure of the limiting mechanism and the clamping mechanism of the application; Figure 4 It is a schematic diagram of the installation structure of the rotary motor of the application; Figure 5 It is a schematic diagram of the installation structure of the connecting plate and the second double-shaft air cylinder of the application; Figure 6 It is a schematic diagram of the installation structure of the buffer plate and the buffer spring of the application; Figure 7 It is a schematic diagram of the installation structure of the rotating seat, rotating block and support plate of the application.

[0017] In the figure: 1, connecting rod; 2, connecting seat; 3, connecting cylinder; 4, rotary motor; 5, connecting block; 6, fixed plate; 7, frame; 8, partition plate; 9, first double-shaft air cylinder; 10, moving plate; 11, shell; 12, connecting plate; 13, second double-shaft air cylinder; 14, moving block; 15, clamping plate; 16, container body; 17, mounting rod; 18, mounting block; 19, vertical plate; 20, rotating seat; 21, rotating block; 22, support plate; 23, support block; 24, buffer pad; 25, buffer plate; 26, buffer spring; 27, electric telescopic rod; 28, limiting block. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purposes, features and advantages of the application, the application will be further described in detail below in combination with the drawings and specific embodiments.

[0019] Many specific details are set forth in the following description in order to provide a thorough understanding of the application. However, the application can be practiced according to other embodiments that can not be described in detail herein, and the application is not limited to the specific embodiments described in this description.

[0020] As Figures 1-7 The grabbing structure of the container empty container stacking device comprises a connecting rod 1, connecting seats 2 are rotatably connected to the two sides of the connecting rod 1, the connecting seats 2 are in U-shaped structure, a connecting cylinder 3 is connected to the middle of the upper end of the connecting seat 2, a rotary motor 4 is connected to the middle of the inner wall of the upper end of the connecting cylinder 3, the output end of the rotary motor 4 penetrates the connecting cylinder 3 and the connecting seat 2 in sequence and extends to the lower side of the connecting seat 2, a connecting block 5 is connected to the output end of the rotary motor 4, fixed plates 6 are connected to the two sides of the connecting block 5, a clamping mechanism is connected to the lower end of the two fixed plates 6, adjusting mechanisms are connected to the two ends of the clamping mechanism, the number of the adjusting mechanisms is two groups, the two adjusting mechanisms are symmetrically arranged, a container body 16 is connected to the lower side of the two adjusting mechanisms, insertion holes are formed around the upper end of the container body 16, and a limiting mechanism is connected to the middle of one side of the clamping mechanism. The connecting rod 1 is connected with the lifting or moving mechanism of the external stacking device to provide installation support for the overall structure, the connecting cylinder 3 protects the rotary motor 4 inside, prevents the motor from being damaged by dust and rain, the rotary motor 4 provides angle adjustment power, drives the connecting block 5 to rotate through the output end, and then transmits power to the two fixed plates 6, so that the clamping mechanism adapts to the placing angle of the container; the fixed plates 6 enhance the connection stability of the clamping mechanism, the clamping mechanism is used for exerting preliminary clamping force from the side of the container, the two groups of symmetrically arranged adjusting mechanisms are used for accurately positioning and locking from the four corners of the container, cooperate with the clamping mechanism to improve the fixing effect, the container body 16 is used as the work object, the insertion holes in the upper end thereof are used to cooperate with the clamping blocks of the adjusting mechanisms to form mechanical locking, and the limiting mechanism is used to assist positioning, buffer impact force and calibrate the levelness of the upper and lower containers.

[0021] The clamping mechanism comprises a frame 7, baffle plates 8 are connected to the middle of the inner wall of the two sides of the frame 7, the outer wall of the baffle plate 8 is connected to the inner wall of the frame 7 around, uniformly formed installation openings are formed in the middle of one side of the baffle plate 8, first double-shaft air cylinders 9 are embedded in the inner wall of the two installation openings, moving plates 10 are connected to the two ends of the two first double-shaft air cylinders 9, the two moving plates 10 are located on the two sides of the frame 7 and slide, and the moving plate 10 is in C-shaped structure. The baffle plate 8 is connected to the inner wall of the frame 7 around to enhance the bearing capacity, the installation openings formed in the baffle plate 8 are used to accurately embed the first double-shaft air cylinder 9, so as to avoid displacement of the air cylinder during operation, the first double-shaft air cylinder 9 is used as a power source and can output bidirectional driving force to drive the two moving plates 10 to slide along the inner wall of the frame 7 and clamp the two sides of the upper end of the container body 16.

[0022] The adjustment mechanism includes a housing 11, and there are two sets of housings 11. One end of each housing 11 is connected to one end of each of the two movable plates 10. A connecting plate 12 is connected to the middle of both sides of the inner wall of the housing 11. An installation port is connected to the middle of one side of the connecting plate 12. A second double-shaft cylinder 13 is embedded in the inner wall of the two installation ports. Both ends of the two second double-shaft cylinders 13 are connected to movable blocks 14. The two movable blocks 14 slide on both sides inside the housing 11. A locking plate 15 is connected to the middle of the lower end of the two movable blocks 14. One side of the locking plate 15 contacts the upper part of both sides of the container body 16. A locking block is connected to the middle of the lower end of the locking plate 15. The locking block is inserted into the insertion holes at the four corners of the container body 16. Two sets of housings 11 are connected to the moving plate 10 of the clamping mechanism to achieve a linkage effect of synchronously approaching the container with the moving plate 10. The connecting plate 12 is fixed to the inner wall of the housing 11, and its installation port is used for precise positioning and embedding of the second dual-axis cylinder 13. The second dual-axis cylinder 13 outputs bidirectional driving force to drive the moving block 14 to slide along the inner wall of the housing 11. The card plate 15 at the lower end of the moving block 14 can fit against the four corners of the outer wall of the container. The card block at the lower end of the card plate 15 is inserted into the container's insertion hole to form a double locking of side fitting and insertion hole connection, which further enhances the stability of the container when gripping it. It complements the lateral clamping of the clamping mechanism and prevents the container from moving up and down or shifting.

[0023] The limiting mechanism includes three mounting rods 17. One end of each mounting rod 17 is connected to a mounting block 18. A vertical plate 19 is connected to the lower center of each mounting block 18. A support plate 22 is rotatably connected to one side of the vertical plate 19. Support blocks 23 are connected to one side of each support plate 22. Buffer pads 24 are connected to one side of each support block 23. A rotating seat 20 is connected to one side of the vertical plate 19 corresponding to one side of the support plate 22. Rotating blocks 21 are rotatably connected to both the upper and lower ends of the rotating seat 20. One side of each rotating block 21 is connected to one side of the support plate 22. The two support blocks 23 are symmetrically positioned on one side of the support plate 22. The buffer pads 24... The structure is semi-circular in shape. The buffer pads 24 are made of silicone. One side of each of the two buffer pads 24 contacts the lower part of one side of the container body 16. Buffer plates 25 are connected to both sides of the vertical plate 19 corresponding to the side of the support plate 22. Buffer springs 26 are evenly connected to one side of each of the two buffer plates 25. One end of each of the multiple buffer springs 26 is connected to one side of the support plate 22. Electric telescopic rods 27 are connected to both sides of the upper end of each of the two support blocks 23. The lower ends of the multiple electric telescopic rods 27 extend through to the lower end of each of the two support blocks 23. Limiting blocks 28 are connected to the lower ends of the two electric telescopic rods 27 and the other two electric telescopic rods 27. The mounting rod 17 and the mounting block 18 provide stable support for the vertical plate 19, ensure the stability of the overall structure of the limiting mechanism, and the vertical plate 19 is connected with the rotating block 21 through the rotating seat 20 and the support plate 22, so that the support plate 22 can be adjusted in angle and adapt to the side profile of the container body 16. The support block 23 on the support plate 22 is provided with a semi-arc buffer pad 24 made of silica gel, which is attached to the lower side of the container to avoid rigid contact and damage to the container. On the other hand, the buffer pad 25 is connected with the buffer spring 26 to further absorb the lateral pressure and enhance the buffering effect. The electric telescopic rod 27 at the upper end of the support block 23 can drive the limiting block 28 to extend downward and contact the side of the lower container to assist in calibrating the levelness of the upper and lower containers and ensuring the regularity of the stack to provide safety and accuracy for the container grabbing and stacking.

[0024] Working principle: when the stacking device moves above the container body 16 to be grabbed, first start the rotating motor 4 in the connecting cylinder 3, the output end of the rotating motor 4 penetrates the connecting cylinder 3 and the connecting seat 2 of the U-shaped structure, drives the connecting block 5 fixedly connected below to rotate, and the clamping mechanism rotates synchronously with the connecting block 5. The operator can control the forward and reverse rotation angle of the rotating motor 4 according to the actual angle of the container body 16, adjust the horizontal posture of the clamping mechanism, make the center axis of the clamping mechanism align with the center axis of the container body 16, lay the foundation for the subsequent clamping action, and avoid clamping misalignment due to angle deviation. Start the first double-shaft air cylinder 9 in the clamping mechanism frame 7, the two end piston rods of the first double-shaft air cylinder 9 extend synchronously, push the two C-shaped moving plates 10 along the sliding rails on the inner wall of the frame 7, start the second double-shaft air cylinder 13 in the adjusting mechanism shell 11 synchronously, drive the moving block 14 to slide along the inner wall of the shell 11, drive the clamping plate 15 at the lower end of the moving block 14 to move to the four corners of the container body 16. Since the upper end of the container body 16 is provided with a plurality of preset insertion holes, the clamping block at the lower end of the clamping plate 15 will be accurately inserted into the corresponding insertion hole to form locking. At this time, the inner side wall of the clamping plate 15 is in close contact with the outer wall of the four corners of the container body 16, realizing the double fixation of side clamping and angle locking of the container body 16, and ensuring that the container will not move up and down or fall off during grabbing. During clamping and locking, the limiting mechanism is activated simultaneously to enhance the stability of the container. The support plate 22 on one side of the vertical plate 19 can be flexibly adjusted in angle with the cooperation of the rotating seat 20 and the rotating block 21, so that the support block 23 on the support plate 22 moves closer to the side of the container body 16. The semi-circular silicone buffer pad 24 on one side of the support block 23 will first contact the lower side of the container body 16 to buffer the instantaneous impact force during clamping. The buffer plates 25 and buffer springs 26 on both sides of the vertical plate 19 will further absorb the lateral pressure of the support plate 22 to prevent the side of the container from deforming due to rigid contact. When the buffer pad 24 is fully attached to the container, the support plate 22 maintains the current angle, and the support block 23 forms lateral support for the side of the container to prevent the container from shifting due to shaking during the lifting process. When the gripping container body 16 is moved above the lower container, the electric telescopic rod 27 is activated. The piston rod of the electric telescopic rod 27 pushes the lower limit block 28 to extend to the side of the lower container until one side of the limit block 28 contacts the side of the lower container. The operator can fine-tune the angle of the rotary motor 4 to make the limit block 28 completely fit with the side of the lower container, ensuring the horizontal alignment accuracy of the upper and lower containers. After the horizontal calibration is completed, the container body 16 is slowly lowered. After stacking is completed, the cylinders and motors are controlled in reverse to disengage the clamping block from the insertion hole and reset the moving plate 10 and clamping plate 15, preparing for the next gripping operation.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A gripping structure of a container empty container stacking device, comprising a link (1), characterized in that, The connecting rod (1) is rotatably connected with connecting seats (2) on both sides, the connecting seats (2) are provided in U-shaped structure, the connecting seats (2) are connected with connecting barrels (3) at the middle of the upper end, the connecting barrels (3) are connected with rotary motors (4) at the middle of the inner wall of the upper end, the rotary motors (4) are sequentially penetrated through the connecting barrels (3) and the connecting seats (2) and extended below the connecting seats (2), the rotary motors (4) are connected with connecting blocks (5), the connecting blocks (5) are connected with fixed plates (6) on both sides, the lower ends of the two fixed plates (6) are connected with clamping mechanisms, the clamping mechanisms are connected with adjusting mechanisms at both ends, the number of the adjusting mechanisms is two groups, the two adjusting mechanisms are symmetrically arranged, the container body (16) is connected below the two adjusting mechanisms, the container body (16) is provided with insertion holes around the upper end, and the clamping mechanisms are connected with limiting mechanisms at the middle of one side. The limiting mechanism comprises mounting rods (17), the number of the mounting rods (17) is three, one end of each mounting rod (17) is connected with a mounting block (18), the mounting blocks (18) are connected with vertical plates (19) at the middle of the lower end, the vertical plates (19) are rotatably connected with supporting plates (22) on one side, the supporting plates (22) are connected with supporting blocks (23) on one side, and the supporting blocks (23) are connected with buffer pads (24) on one side.

2. A gripping structure for a container empty container stacking apparatus according to claim 1, wherein The clamping mechanism comprises a frame (7), the inner walls of the frame (7) are connected with partitions (8) at the middle of both sides, the outer walls of the partitions (8) are connected with the inner walls of the frame (7) around, the partitions (8) are uniformly provided with mounting openings at the middle of one side, and the first double-shaft air cylinders (9) are embedded in the inner walls of the two mounting openings.

3. A gripping structure for a container empty container stacking apparatus according to claim 2, wherein The two first double-shaft air cylinders (9) are connected with moving plates (10) at both ends, and the two moving plates (10) are respectively located on both sides of the frame (7) and slide.

4. The gripping structure of the empty container stacking device of claim 1, wherein The adjusting mechanism comprises a shell (11), the number of the shell (11) is two groups, one end of each shell (11) is connected with one end of the two moving plates (10), and the inner walls of the shell (11) are connected with connecting plates (12) at the middle of both sides.

5. A gripping structure for a container empty container stacking apparatus according to claim 4, wherein The connecting plates (12) are connected with mounting openings at the middle of one side, the second double-shaft air cylinders (13) are embedded in the inner walls of the two mounting openings, and the two second double-shaft air cylinders (13) are connected with moving blocks (14) at both ends.

6. A gripping structure for a container empty container stacking apparatus according to claim 5, wherein The two moving blocks (14) are connected with clamping plates (15) at the middle of the lower end, the clamping plates (15) are respectively in contact with the upper parts of the two sides of the container body (16) on one side, the clamping plates (15) are connected with clamping blocks at the middle of the lower end, and the clamping blocks are inserted into the insertion holes at the four corners of the container body (16).

7. The gripping structure of the empty container stacking device of a container according to claim 1, wherein The vertical plate (19) one side corresponds to the support plate (22) one side is connected with rotating seat (20), the rotating seat (20) upper end and lower end are all rotatably connected with rotating block (21), two the rotating block (21) one side is connected with the support plate (22) one side, two the support block (23) one side is respectively arranged in the support plate (22) one side, the shape of the buffer pad (24) is half arc type structure, the buffer pad (24) is made of silica gel material, two the buffer pad (24) one side is respectively with the container body (16) one side lower portion contact.

8. A gripping structure for a container empty container stacking apparatus according to claim 7, wherein The vertical plate (19) both sides correspond to the support plate (22) one side is connected with the buffer plate (25), two the buffer plate (25) one side is evenly connected with buffer spring (26), multiple the buffer spring (26) one end is respectively connected with the support plate (22) one side, two the support block (23) upper end both sides are connected with electric telescopic rod (27), multiple the electric telescopic rod (27) lower end is respectively extended to two support block (23) lower end, wherein two the electric telescopic rod (27) lower end and the other two electric telescopic rod (27) lower end are all connected with limit block (28).

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